getProteinCDSSequences

Return a list of protein sequences based on each CDS sequence
where the phase shift between two CDS sequences is assigned to the
CDS sequence that starts the triplet. This can be used to map
a CDS/exon region of a protein sequence back to the DNA sequence
If you have a protein sequence and a predicted gene you can take the
predict CDS protein sequences and align back to the protein sequence.
If you have errors in mapping the predicted protein CDS regions to
an the known protein sequence then you can identify possible errors
in the prediction